Pro Sites Levels – for features or for products

I’d like to offer my clients the ability to create several distinct types of sites.

Ideally, I would like to offer the following:

– Site A at a basic, medium and advanced level

– Site B at a basic, medium and advanced level

– Site C at a basic, medium and advanced level

– Site D at a basic, medium and advanced level

– Site E at a basic, medium and advanced level

Each of these sites (A, B, C, D, E) are distinct. They each have their own theme and plugins that make each a distinct product. And they each have a set of themes/plugins that client can purchase to improve on that product.

I tried setting up each Pro Site level to correspond to each distinct type of site (5 sites; 5 levels), but… that didn’t seem to sit right. Pro Sites Levels seem to be all about features – (starting out with a basic set of features and offering more and more features at each level).

I added the New Blog Templates plugin. I created a template for each type of site (5 templates). But it seems that all 5 templates are available at all Levels. Is that right?

Any ideas?